Fan module and electronic device

An electronic device, comprising:

• a chassis;
• a fan module, disposed within the chassis, comprising:
• a fan housing, having an open side and an enclosing side which surrounds the open side, wherein a first airflow guiding channel is disposed at the open side;
• a fan, disposed in the fan housing;
• and
• a heat dissipating member, disposed at the open side, wherein the heat dissipating member has a second airflow guiding channel, the second airflow guiding channel is communicated with the first airflow guiding channel, and an air generated by the fan passes through the first airflow guiding channel and the second airflow guiding channel and flows out for dust exhausting,
• wherein the heat dissipating member comprises a heat sink body and a plurality of heat dissipating fins, and the heat dissipating fins are disposed at a near side, which is near to the fan, of the heat sink body and a far side, which is far from the fan, of the heat sink body,
• wherein each of the heat dissipating fins located at the far side has a length protruded from the heat sink body, the length of each of the heat dissipating fins located at an outlet of the second airflow guiding channel is shorter than the length of each of the rest of the heat dissipating fins located at the far side, so as to form a yielding area.